If you want to use the Mihome App function, we are afraid that you need to use wifi to control the robot, otherwise, the App will not be connected to your robot. But if you don't need your phone to control the robot, there is no need to use wifi, you can just start it by press the button on your robot, thank you.

Robot scans area every time. It will start with last floor plan but will start rescanning as it starts again. It is really smart and I am loving it. Also it does not hit object hard rather steers clear whenever possible.

We are afraid that we do not support the app to make a virtual wall to keep it out of some areas at this moment, but if you want to insulate some areas, you could buy the virtual wall for safe cleaning space. Thanks

To use this product you may need choose Mainland China as the server in the Mi Home APP settings. This product may not be able to connect to the Mainland China server in Mi Home APP.